Respuesta :

Answer: ray

Explanation:

A wave is characterized by its wavelength which is the distance between two crests or two troughs. Crest is the maximum displacement in the upward direction perpendicular to the direction of motion of wave where as Trough is maximum displacement in the downward direction.

A ray represents the direction of motion of the wave fronts.

Refer figure below:

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For travelling waves, the direction of motion for a series of wave fronts is represented with a ray.

What is a wave front?

A wave front is an imaginary surface representing a region in which particular points in a wave are in phase or are vibrating simultaneously.

A ray is a path or direction in which waves travel.

Therefore, the direction of motion for a series of wave fronts is represented with a ray.

Learn more about wavefront at: https://brainly.com/question/637931

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